Locking device



H. BRUNNER.

LOCKING DEVICE. APPLICATION FILED Aus. 17, 1920.

1,413,572.- PatentedApr.25,1922.

/ans 27mm/nef m' lV TOaZZ 'whom t may concern;

HANs BRUNNER, or AMSTERDAM, NETHERLANDS. v

LocKrNG nevica.

Be it known that I, HANS zen 0f Switzerland, residing at Amsterdam, Netherlands, have invented Vcertain new and useful Improvements in Locking Devices, of which the following isa specification.

This invention relates to a locking device for railway freight cars and has for its ob-v ject to provide improved means for preventing the opening of Vlocked cars by thieves and like persons withoutattracting the lat tention of other people.

.The main disadvantage of the locking devices hitherto used and designed, are, that the opening of the lock canbe done'almost noiselessly.

Vith the above object in view theinvention consists in the details of construction and in the arrangement and combination of parts as will be hereinafter fully described and pointed out in theappended claims, and which allow the opening of the lock only by striking some parts of the lock with a ham? mer or like heavy tool sufficiently hard to attract the attention. i

An embodiment vof the present invention is illustrated in the accompanying drawing, in which:

. Fig. 1-is a front view; 1A y Fig. 2 is a top view, and 1 Fig. 3 -is aside elevation of the locking device, its casing being omitted. A

Y Referring more particularly to the drawing, 1 indicates an elastic steel plate, adapted to be bent only by -'striking it hard with a hammer, 2 is a striking pin, which is pressed by means of a spring 3 against the back part of the steel plate land 4 is a cam attached to the striking-pin 2, 5 is-a roller supported in one of the legs of an angle lever 6, said roller being` pressed against the striking pin 2 by means of a spring 7v working on the other leg of the angle lever 6, and fixedbetweeny the guide blocks 8 for guiding said other leg; its end being adapted to engagein the teeth of a pinion-9 mounted on' a spindle 10. 11 is an eccentric keyed tosaid spindle 10 and 12 a locking bolt guided by guides13,

suitably connected to said eccentric llrand adapted to be moved by turning'thespmdle BRUNER, citi-'- Aon the drawing).

vinto slot 14.

Specification of Letters Patent. `Patented Apr. 25, 1922 Application filed August 17, 1920. Serial No. 404,061.

halves, or if there is only oneY door it may be the plate 15 and thelocking. bolt 12 are dis-fl eng-aged VThe locking bolt 12 has alstud l'21,1which rests against the slightly bowed end of the Y.

leg 22 of an angle lever, which is tur-nable around a spindle 23.k The other leg lof said Y angle lever carries agrip .or handle 24:, for operating said lever, which may be provided with the usual means for sealing (not shown Now the operation` of Vclosingand,opening K the lock will be as follows: v then closing the lock, the projection 17 vof the locking plate 15 is put in the slot ofthe ,brace 18; Now byv striking the elastic steel plate 1 hard with a hammer, the blow will be transmitted to the striking :pin l2, which causes said pin at each'blow of the hammer to make a down and up motion; the latter' on account of the action of the spring 3.

During the downward mot-ion the cam 4 will run against the 'roller 5, which causes the engagement of the end of the anglev lever 6 with the teeth of the pinion 9; bythe upward motion .however the angle leverf'and thev pinion are disengaged, as the spring 7.; pushes the angle lever backlin itsv formerypof l Every blow .on the steel platefl' Y sition. causes also a corresponding turning oftheV pinion .9 and at the same time of the eccenf tric 11, which leadsto an engagement ofthe locking bolt 12 with theslot 14 of the' locking plate 15, and causes also a closing of the locking device. f Y Y The locking of the bolt-12 mayalso be obtainedl by moving the handle 2etidownwfards,

which causes the angle lever and lits leg 22,

toV turn or .swing around the ,spindle 23,

which results in pushing the lockingv bolt 12 However this operation;is only possible, when `the .eccentric is' not vstanding in its dead-centre position.' If this is the case yone or more blows with the hammer will suflice to bring the eccentric 11 into vits proper Aposition.

It will'be obvious that the position ofthe angle lever will indicate whether thelock is y closed or not.

The opening of the lock can only be obtained by moving the locking bolt ina direc'- tion opposite to its closing movementgvhich may be achieved by a further turning of the pinion 9 in the same direction by another series of hammer blows on'the platel, which brings the eccentric 11 over its dead-centre position and moves the bolt 12 out oi' engagement with the locking plate 15. y

The projection 17 of the plate 15 and the brace 18 may then be disengaged by lifting the plate by means of the handle 20, whereai'ter the car door can be opened.

The opening of the lock Atrom the inside of the car is only possible by removing the casing oit the lock (not shown on the drawing) and by moving the locking bolt by hand or by turning the spindle 10 by means of a) suitable handle, (not shown on the drawing v It will be obvious, that there are many other ways, than the one shown on the drawing, for transmitting the motion of the striking pin 2 to the locking bolt 12 without interfering in the least with the idea. of this invention.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed I declare that what I claim is:

1. In a locking device the combination of a locking-plate, a locking bolt, said locking plate adapted to be locked or released by said locking bolt, a flexible elastic steel plate, and means arranged between said steel plate andA locking bolt to bring the locking bolt into either its locking or its releasing position by subjecting the steel plate to a series of successive llexures.

2. In a locking device the combination of a locking-plate, a locking bolt, said locking plate adapted to be looked or released by said locking bolt, a ileXible elastic steel plate, a spindle arranged between said steel plate and locking bolt, means to rotate said spindle by subjecting the steel plate to a series of successive lieXures, and means between 'said spindle and locking bolt to bring said bolt into either its locking or its releasing position by rotating said spindle.

3. In a locking device the combination of a locking plate, a locking bolt, said locking plate adapted to be locked or released by said locking bolt, a flexible elastic steel plate, a spindle arranged between said steel plate and locking bolt, a striking pin resting against said steel plate and adapted to oscillate up and down when the steel plate is subjected to a series of successive fexures, means for transforming the upward movement of said striking pin into a rotating motion oi' said spindle, and means between said spindle and looking bolt to bring the looking bolt into either its locking or its releasing position by the rotation of said spindle.

4. In a lock, the combination of an impact device adapted to be struck by a hammer; a bolt; and mechanical connections between the bolt and the impact device for operating the former consequent upon the striking of the latter.

5. In a lock, the combination of an impact device comprising an oscillatory ele-' ment; a bolt; and means for imparting a progressive step-by-step movement to the bolt consequent upon the` oscillation of said element.

6. In a lock, the combination of an oscil latoryk element; a ratchet; means for imparting a step-by-step rotary movement to said ratchet consequent upon `the oscillation of.

adapted to be repeatedly struck by a ham-4 mer, and an element adapted to oscillate consequent upon the lexure of the firstnamed element; a bolt; and mechanical connections between said bolt and the second-i named element for operating the Vformer consepuent upon the oscillation of the latter.

9. n a lock, the combinationv oit an 'element adapted tok be repeatedly oscillated; a cam thereon; a bolt; and means operated by said cam duringthe succemive oscillations of said element for progressively advancing said bolt into locking position.

l 10. In a lock, the combination of an oscil-` latory element; a cam thereon; a bolt; a ratchet; means operated by said cam during the oscillation of said element for driving said ratchet; and means operated by said ratchet for advancing said bolt into locking position.

11. In a lock, the combination of an oscillatoryV striker pin; a bolt; and connections between said pin and said bolt for advancing the latter into locking position during' and consequent upon the oscillation of the former, i

In testimony whereof he aflixes his signature.

v HANS ABRUNNER. 

